OVERLEA, Md. (WJZ)—On the outside it looked like a normal house, but prosecutors say inside women traded sex for money. We’re learning more about how the alleged brothel was busted.

Mike Hellgren has new insight on the case.

A Porsche, BMW, Rolex watches, cash. The Feds say the men behind this were living the high life. They now face prison time and more than $2 million in fines.

Retiree Lena Harrington never suspected a major prostitution ring was operating just a few feet from her bedroom window in Overlea.

“They’re being exploited,” Harrington said. “It’s very difficult to comprehend how something like that could go on right under your nose. You don’t even realize it.”

Federal prosecutors say the house on Bel Air Road masqueraded as a massage parlor, but the real business was sex–that made hundreds of thousands of dollars for the men behind it, who would fly in women from Asia.